/*
Supersized - Fullscreen Slideshow jQuery Plugin
By Sam Dunn (www.buildinternet.com // www.onemightyroar.com)
Version: supersized.2.0.js // Relase Date: 5/7/09
Website: www.buildinternet.com/project/supersized
Thanks to Aen for preloading, fade effect, & vertical centering
*/

(function($){

	//Resize image on ready or resize
	$.fn.supersized = function() {
		$.inAnimation = false;
		$.paused = false;
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
		
		$(window).bind("load", function(){
			$('#loading').hide();
			$('#supersize').fadeIn('fast');
			if ($('#supersize .activeslide').length == 0) {
				var imglen = $('#supersize div.prevslide').length;
				var ranImgCnt = (Math.floor(Math.random() * 10)+1)% imglen;
				$('#supersize div.prevslide')[ranImgCnt].className = 'activeslide';
			}
			if (options.slideshow == 1){	
				slideshow_interval = setInterval("nextslide()", options.slide_interval);
			}

		});
				
		$(document).ready(function() {
			$('#supersize').resizenow(); 
		});
		
		//Pause when hover on image
		$('#supersize > *').hover(function() {
	
	   		if($.inAnimation) return false; /*else $(this).find('img').attr("title","");*/
	   	}, function() {
	
	   	});
		
		$(window).bind("resize", function(){
    		$('#supersize').resizenow(); 
		});
		
		$('#supersize').hide();
	};

	//Adjust image size
	$.fn.resizenow = function() {
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	  	return this.each(function() {
	  		
			//Define image ratio
			var ratio = options.startheight/options.startwidth;

			//Gather browser and current image size
			var imagewidth = $(this).width();
			var imageheight = $(this).height();
			var browserwidth = $(window).width();
			var browserheight = $(window).height();
			var offset;

			//Resize image to proper ratio
			if ((browserheight/browserwidth) > ratio){
			    $(this).height(browserheight);
			    $(this).width(browserheight / ratio);
			    $(this).children().height(browserheight);
			    $(this).children().width(browserheight / ratio);
			} else {
			    $(this).width(browserwidth);
			    $(this).height(browserwidth * ratio);
			    $(this).children().width(browserwidth);
			    $(this).children().height(browserwidth * ratio);
			}

			
			if (options.vertical_center == 1){
				$(this).children().css('left', (browserwidth - $(this).width())/2);
				$(this).children().css('top', (browserheight - $(this).height())/2);
			}
			
			return false;
		});
	};
	
	$.fn.supersized.defaults = { 
			startwidth: 4,  
			startheight: 3,
			vertical_center: 1,
			slideshow: 1,
			navigation:1,
			transition: 1, //0-None, 1-Fade, 2-slide top, 3-slide right, 4-slide bottom, 5-slide left
			pause_hover: 0,
			slide_counter: 1,
			slide_captions: 1,
			slide_interval: 5000
	};
	
})(jQuery);

	//Slideshow Next Slide
	function nextslide() {
		if($.inAnimation) return false;
		else $.inAnimation = true;
	    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	    var currentslide = $('#supersize .activeslide');
	    currentslide.removeClass('activeslide');
		
	    if ( currentslide.length == 0 ){
				currentslide = $('#supersize div:last-child');
		}
			
	    var nextslide =  currentslide.next().length ? currentslide.next() : $('#supersize div:first-child');
	    var prevslide =  nextslide.prev().length ? nextslide.prev() : $('#supersize div:last-child');
	
		
		//Display slide counter
		
		$('.prevslide').removeClass('prevslide');
		prevslide.addClass('prevslide');
		
	    nextslide.hide().addClass('activeslide')
		nextslide.show(); $.inAnimation = false;

	    $('#supersize').resizenow();//Fix for resize mid-transition
	    
	}